/*-
 * ========================LICENSE_START=================================
 * screenit-web
 * %%
 * Copyright (C) 2012 - 2020 Facilitaire Samenwerking Bevolkingsonderzoek
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * =========================LICENSE_END==================================
 */
;(function (undefined) {
    'use strict';

    if (typeof (ScreenIT) === "undefined") {
        window.ScreenIT = {};
    }

    ScreenIT.FileUploadField = Wicket.Class.create();
    ScreenIT.FileUploadField.prototype = {

        initialize: function (fileid, maxFileSize) {
            this.fileid = fileid;
            this.maxFileSize = maxFileSize;

            var fileInputElement = Wicket.$(fileid);
            fileInputElement.onchange = Wicket.bind(this.verifyFileSize, this);
        },

        verifyFileSize: function () {
            var fileInputElement = $('#' + this.fileid);

            var totalSize = 0;
            for (var i = 0; i < fileInputElement.prop('files').length; i++) {
                totalSize += fileInputElement.prop('files')[i].size;
            }

            if (totalSize > this.maxFileSize) {
                fileInputElement.trigger('FILE_SIZE_ERROR_TRIGGER');
                this.clearFileInput(fileInputElement);
            }
        },

        clearFileInput: function (inputElement) {
            try {
                inputElement.val('');
            } catch (ex) {
            }
            if (inputElement.value) {
                inputElement.parentNode.replaceChild(inputElement.cloneNode(true), inputElement);
            }
        },

    };
})();
